Freezing machine



Oct. 20, 1931. HAGEN 1,827,873

FREEZING MACHINE Filed April 28, 1927 2 Sheets-Sheet l Get. 20, 1931. J. H. HAGEN FREEZING MACHINE Filed April 28, 1927 2 Sheets-Sheet 2 Patented Get. 1931 was H. enema, or cANroN; orrro, AssfeNor; T THE-H. n. MILLER fnnusrn nsfooivri PANY, or centr'on, OHIO, A CORPQRATIONX or OHIO 1 FREEZING Macrame Application filed April '28,

This invention relates to a machine. for freezing ice cream, 1ces and other foods and dehcacies, inore'particularly to the mount ng of one of the heads for-the freezing cylinder.

In machines of this character the front head is made removable for assembly and disassembly of the agitating mechanism within the freezing cylinder, and topermit inspec- 110 tion and cleaningofsuch mechanism. 7 By reason of the fact that the shaft for the agitating mechanism has a bearingin the front head, it has been the'p'ractice to vremovably secure the front head onthe front or open end of the freezing cylinder so'that in positioning the head or removing it' from the cylinder end, it could be; moved in a substantially axial direction. Nhere the freezing cylinder is of relatively large capacity, the weight of the front head is too great to enable the operator at least without undue physical effort, to lift the head into position or to re move it. a hi i The object ofmy invention isto'provide a relatively simple mounting for the, front head so arranged that itmay be moved axially sufficiently to engage or disengage the shaft of the agitating mechanism and then laterally, whereby all manual lifting is elimigo nated.

Other objects of the invention will'be apparent to those skilled in the art to which my invention relates from the following description taken-in connection with the accompanying drawings, wherein Fig. 1 is a front view of a freezing machine having a mounting for the front head embodying my invention; parts of the machine being broken away.

Fig. 2 is a top plan view of certain of the parts shown in Fig. 1.

Fig. 3 is a fragmentary side viewof the freezing machine.

Fig. 4 is a section on the line ir-.4 of Fig. 1. Fig. 5 is a section on the line 55 of Fig. 1. In the drawings, 1 indicates a suitable support for a freezing cylinder indicatedas an entirety at 2. Within the cylinder 2 is a suitable agitating, scraping and ejecting mechanism, which may besimilar to the concomprises an arm 8a fixed at its inner endto the adjacent portion of the ring 6 and pro- 192'7. serial No. 187,161.

,struction shown in Patent No. 945,57(l issued to John C. Miller-,such mechanismmay be driven by a power means 3. The cylinder comprises "a rearhead (not shown) and a front head 4 to which reference will. later be made The cylinder 2 comprises. an inner wall (not shown), a refrigeratingmeans (not 7 shown) around the inner wall and: an outer wall 5 (see Fig. 1).;The inner androuter walls are secured attheir'front' ends tora ring 6 which also spaces these wallsapart. The ring 6 may have a depending member-7 secured to the support 1 to support the front 'endof the cylinder thereon. The ring 6 has an out-standing rib 6a with which the flange lasof the head 41 engages to form a- 'oint between them, the abutting faces of the rib and flange being ground to insure aliquid tight joint. '8 indicates pairs o f interloclnng devices, one device of, each pair removably-engaging the other, device of; the pair, to-removably secure the head in position, ,that is, with the ground faces of the rib 6a and flange 4min engagement. I preferably pro- .vide two pairs of interlocking'devices 8 at diamet-rically opposite sides and preferably in a horizontal plane cutting the axis of the cylinder 2. Each pair of interlocking devices vided at its free end with an inturnedflange 8a anda rotatable member havinga po'r.-

tion'8b adapfid to engage' the flange-"8M when rotated to one position andfto, freeiit when rotated toanother-position; thedevice I 812' having a handle 80 whereby it may. be readily operated. @The' agitating, scraping rnechanism' within the, cylinder includes a shaft 9 (see dotted lines in Fig. 1) which is driven by the power means3. 1 .The front end: of the shaft has a bearingin a tubular member 10 carried bythe front head l and extending axially of the-shaft. By mounting the shaft in the head, the agitating members may operate close to 'theinner face of the front head and thus eliminate within the cylinder holding space for material outside'the zone or travel of theagitating and scraping elements, which space-if presents-would materially affect the uniform treatment offfthe upper end of the duct having a cover 16. l7

indicates a supply duct, preferably formed integrally with the'head 4; and leading to an opening (not shown) formed in the cylinder head; this duct permitting the supply of flavoring material'in'to the cylinder 2-. The upper end of the duct 17 carries a funnel or hopper 18. 19 indicates a batch tank for measuring i the batches of material to be treated. a.

r 20 indicates a supporting member secured to one lateral side of the ring 6, preferably by cap screws 21. 22 indicates an outwardly extending bracket'onsaid supporting member carrying at its outer end a knuckle 22 "disposed in aplane extending horizontally throughthe axis of the cylinder 2. 23 indicates a member having spaced knuckles 24 arranged to align with the knuckle 22" to receive 'apivot pin 25, whereby the member 23 is swingably mounted on the supporting member 20. vThe"member'23 comprisesa pair of curved arms 23a, 23a, extending around the adjacent edge portions or flange 4a of the head a and carrying at their free ends bosses 26 having interiorly threaded openings 27 aligned with each other, the axes of the open ings being in avertical plane cutting the axis of the cylinder '2. 28 indicates threaded pins mounted in the openings 27- and adjustable therein. The inner ends ofthe pins 28 are.

of conical shape and fit into correspondingly shaped recesses 29 formed in'the outer side wall or flange 4a of the head t and serving to trunnion or pivot the head thereon. By

mounting the head 4; on vertically arranged 'trunnlons, it can be maintained in parallel- 15 indi-' ure will clear the adjacent portions of the cylinder 2, and ample metal is provided to form cut-aways 30, 31, in'the central portion of the swingable member 23 and member 20 V to accommodate the adjacent interlocking de vices 8. By connecting the ring t0 the support 1, it is rigidly held in position at all times and hence danger of the weight of the member 23 and head 4 when the latter is removed, distorting the thin walls ofthe cylinder is eliminated.

To those skilled in the art to which myinvention relates many alterations in construction and Widely difiering applications and embodiments of my invention will suggest themselves without departing fro m the spirit and scopethereot. My disclosures and the descriptionherein are purely illustrative and are not intended tofibe inany sense limiting. v I

Whatl claim is: 5 1 Y In a freezing machine, the combination with a cylinder, of a headengagingthe open end of said cylinder and formed with a discharge opening in its lower portion and adapted to support the shaft mounted within said cylinder, a supportingmember secured to'one side'portion of said cylinder, a member swingably mounted on said supporting member on an' axis disposed outwardly ot-the wall of said cylin'der and having diverging portions, trunnions' between said head and the diverging portions of said swingable member" disposed in a vertical planecutting the axis of said cylinder,a wall surrounding said discharge opening and ex-' tending outwardly beyond the adjacent-diverging portion of said swingable member,

and a plate movable relative to the outer end of said surroundlng wall to open and close 1 the opening therethrougn.

In testimony whereof, have 'hereunto subscribedmy name. V JOHN H. HAGEN.

ism to the open endof the cylinder while the farms23a swing toward or from the cylinder,

so that the bearing member 10 can, without binding, engage the shaft'9 when assembling thehead, or disengage therewith when disassembling the head. The axis of the pivot 25 being substantially in the plane of the I hea'da n'd the arcot movement of the tubular ,member through that portion of its swing necessaryto operatively engage or disengage the shaft being relatively short, danger of binding is eliminated. V I

By swinging the arms 23a through an arc of 90 or more andmoving thehead on its trunnion,ready access may be had' to the interior of the'cylinder 2. As will be understood from Fig. 5, the supporting member 20 'extendsa relatively long distance from the j ring 6, so that the head t, when swung to i the position shown in dotted lines'in this fig- [too 

